1. Smarter NPCs ( The Fallen going on patrols around the map. Instead of staying in one area so it's always the same every time you going in game. ) ( when a group of fallen See there commanders drop dead they run away or beg for their life. Kinda like the grunts in Halo.) (More battle strategies like flanking and suicide bombers.) 2. Proximity chat for sure in PvP and PvE. Maybe a text chat for the tower. 3. Larger fireteams 4 as the lowest, and 6 max. There's probably better ideas out there but that's my impression of the beta and alpha.